What Is Slump Cone Test | Principle of Slump Test | Types of Concrete Slump

What Is Slump Cone Test?

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Principle of Slump Test

Scale for Measurement Read more

Temping Rod (steel) Read more

The Concrete Slump Test Procedure:

The mold for the concrete Slump test is a 300 mm high cone-shaped trunk, often referred to as the slump cone , with specific slump cone dimensions . The base is 200 mm (8 in) in diameter and has a smaller opening at the top of 100 mm (4 in), defining the size of slump cone . The base is placed on a smooth surface, and the container is filled with concrete in three layers, whose workability must be tested. Each layer is tempered 25 times with a standard 16 mm (5/8 in) diameter steel rod, rounded at the end. When the mold is completely filled with concrete, the upper surface is reached (flush with the upper opening of the mold) through the sieving and rolling motion of the quenching rod. The mold must be held firmly against its base during the entire operation so that it cannot move due to concrete leakage, and this can be done through handles or footrests welded to the mold. Immediately after completing the filling and leveling the concrete, the cone is slowly and carefully lifted vertically. An unsupported concrete will now Slump. The decrease in the height of the center of the Slumped concrete is called a Slump. The Slump is measured by placing the cone just beside the Slumped concrete, and the quenching rod is placed over the cone so that it also exceeds the area of the Slumped The decrease in the height of the concrete in relation to that of the mold is observed in (usually measured up to the nearest 5 mm (1/4 inch). Read more

Precautions in the Slump Test

True Slump Shear Slump Collapse Slump Read more

1. True Slump:

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Applications of Slump Test:

Slump Test of Concrete

Slump Cone Size

Slump Value for Different Grades of Concrete

Sr.No. Concrete Mixes Slump Range in mm 1 Beams & Slabs 50-100mm 2 Columns, Retaining walls 75-150mm 3 CC Pavements 20-30mm 4 Decks of bridge 30-75mm 5 Vibrated Concrete 12-25mm 6 Huge Mass constructions 25-50mm Read more

Slump Test Values

Workability Compaction Factor Slump (mm) Very Low 0.78 0 - 25 Low 0.85 25 - 50 Medium 0.92 50 - 100 High 0.95 100 - 175 Read more

Concrete Slump Range

True Slump

Slump Value of Concrete

Sr.No. Types of concrete Slump 1 Concrete for road construction 20 to 40 mm 2 Concrete for tops of curbs, parapets, piers, slabs, and wall 40 to 50 mm 3 Concrete for canal lining 70 to 80 mm 4 Normal RCC work 80 to 150 mm 5 Mass concrete 20 to 50 mm 6 Concrete to be vibrated 10 to 25 mm Read more

Slump in Concrete

Slump Cone Test Equipment

Slump cone Base plate Tamping rod Measuring scale or tape Stopwatch Clean water Trowel Non-absorbent gloves Read more

Slump Cone Test Standards

ASTM C143/C143M AASHTO T 119 BS EN 12350-2 IS 1199-1959 Read more

Slump Cone Test Results

Types of Slump Test

Concrete Slump Chart

What Is Slump in Concrete?

What Is Shear Slump?

What Is the Recommended Slump for Rcc Work?

Foundations and Footings: Slump values between 50mm and 75mm (2 inches to 3 inches) Columns and Beams: Slump values between 75mm and 100mm (3 inches to 4 inches) Slabs and Pavements: Slump values between 75mm and 100mm (3 inches to 4 inches) Read more

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Sr.No.	Concrete Mixes	Slump Range in mm
1	Beams & Slabs	50-100mm
2	Columns, Retaining walls	75-150mm
3	CC Pavements	20-30mm
4	Decks of bridge	30-75mm
5	Vibrated Concrete	12-25mm
6	Huge Mass constructions	25-50mm

Workability	Compaction Factor	Slump (mm)
Very Low	0.78	0 - 25
Low	0.85	25 - 50
Medium	0.92	50 - 100
High	0.95	100 - 175

What Is Slump Cone Test | Principle of Slump Test | Types of Concrete Slump